# Curiosity vs SAT

The clearest difference is in-app purchases: SAT at none against Curiosity's 3. Curiosity's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Curiosity sells 3 in-app purchases, starting at $2.99 per month. SAT asks for nothing beyond the download.

Curiosity ships an update every 2 weeks, SAT every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Curiosity | SAT |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Size | 47 MB | 49 MB |
| Requires iOS | **15.1** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Gaudhiwaa Hendrasto](https://appshunter.io/developer/1880520321) | [Partha Kashyap](https://appshunter.io/developer/1604096006) |

## What reviewers say

### Curiosity

[App page](https://appshunter.io/ios/app/curiosity-ai-study-tools/id6759777692)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro - 150 Points | $2.99 | per month |
| Pro - 300 Points | $4.99 | per month |
| Pro - 450 Points | $6.99 | per month |


### SAT

[App page](https://appshunter.io/ios/app/sat-made-easy/id6783960620)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Curiosity free?

Curiosity is free to download, with in-app purchases available.

### Is SAT free?

SAT is free to download, with no in-app purchases.

### Do Curiosity or SAT have ads?

SAT shows ads; Curiosity does not.

### Which is updated more often, Curiosity or SAT?

Curiosity ships an update every 2 weeks, and SAT every 3 weeks. Most recently, Curiosity was updated on October 24, 2026 and SAT on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*